Seuttee woekee



(No Model.)

A. H. DODD.

SHUTTER WORKER.

No. 319,205. Patented June 2, 1885.

NITED Stains Ferrari Grinc ALVIN H. DODD, OF HUDSON, NEXV YORK.

SHUTTER W'ORKER.

SPECIFICATION forming part of Letters Patent No. 319,205, dated June 2,1885.

V: n Application filed March 30, 1885. (No model.)

To Mr? whom it may concern:

Be it known that I, ALVIN H. Donn, of Hudson, in the county of Columbiaand State of New York, have invented a certain new and usefulImprovement in Shutter-Workers, of which the following is aspecification.

My invention relates to those shutter-workers for blinds and shutterswhich consist of two hinge-leaves having bearers pivoted together, onehinge-leaf being provided with a toothed segment, with which engages aworm or screw journaled in the other hinge-leaf. The hinge-leaf whichcarries the worm or screw being secured fast to the window-casing, theturning of the screw will cause the other hinge-leaf to swing relativelyto the fixed leaf, and so produce the opening or closing of the shutteror blind, according as the screw is turned in one or other direction.

The invention consists in a novel combination of parts, hereinafterparticularly described, and pointed out in the claim.

In the accompanying drawings, Figure 1 represents a horizontal sectionof a portion of a window-casing and shutter or blind with my improvedshutter-worker applied thereto, a portion of such worker being shown insection. Fig. Zrepresents an elevation or edge view of one hinge-leafand the worm or screw journaled therein, and Fig. 3 is a face view ofthe two hinge-leaves and a section of the stem or shaft of the worm orscrew.

Similar letters of reference designate corre sponding parts in all thefigures.

A designates a portion of a shutter or blind, and B designates parts ofthe window-casing to which such shutter or blind is applied.

0 designates a portion of the lower sash, which is balanced by a weight,0, and C designates the weight forthe upper sash,which is not hereshown. The weights 0 0 work in suitable weight-boxes in the casing B.The hinge with which the shutter-worker is combined is composed of twoplates or leaves, D D, the former secured to the blind A, and the lattersecured to the outer side of the window-casing B, as best shown inFig. 1. The leaves D D are provided, respectively, with bearers d d,pivoted together or connected by a hingepin and pintle, c. The bearer dof the leaf D is likewise constructed with atoothed segment, 11*, whichis concentric with the pivot c, and

the hinge-leaf D carries or supports the worm or screw E, the thread ofwhich engages with the teeth of the toothed segment (2*. The worm orscrew E has astem or shaft, E, fitted to a bearing, (i in the leaf D,and with which is connected a shaft-extension, E journaled transverselyin the window-casing, and extending through the same to the inner sidethereof. At its inner end the shaft-extension E is supported by aflanged bearing, F, attached to the casing, and inside the bearing is acrank or handle, G, whereby the shaft-extension, shaft, and worm orscrew may be turned in order to open or close the blind or shutter A. Ashere represented, the shaft or stem E of the worm or screw E has aportion of reduced diameter sufficiently long to fit the bearing d", andinside the bearing is provided with an enlargedhead or portionconstructed with a socket, e, in its inner end for the reception of theend of the shaft-extension E, which is secured therein by a pin, f. Theworm-shaft E is held against movement lengthwise in its hearing by thetwo shoulders formed, respectively, by the worm E and the enlarged headin which is the socket e.

In order to enable the shaft to be introduced into its bearing, the leafD is slotted at d from the inner edge, or that edge at which is thebearer d, outward to the bearing 62. The form of this slot d? is bestshown in Fig. 3, and from that figure it will be seen that the slotextends from the bearing (1 upward and inward toward the bearer d. Itwill therefore be seen that theworm, worm-shaft, and enlarged head,whichcontains the socket 0, may be cast integral with each other, and beforethe leaves of the hinge are put together the worm-shaft may be slippedthrough the slot (7. into its bearing (P, as will be best understoodfrom Fig. 2. The bearers of the leaves being then connected, it will beunderstood that the toothed segment (1*, by its engagement with the wormE, holds the worm and worm-shaft in the bearing (2 and prevents theirmovement in the slot ina direction to remove them therefrom. The bearingwhich is afforded the shaft-extension E in the window-casing B alsotends to hold the worm and worm-shaft in position.

It will be understood that the construction of the worm-shaft E,with itsshoulders formed ICO by the worm and the enlarged head in which is thesocket 6, provides for holding the worm securely against axial movement,and the construction of the bearing (1 with the slot (1 enables theworm, with its shoulders cast thereon, to be readily placed in thebearing, and also avoids the necessity of boring out a cylindric bearingfor the worm-shaft. These features therefore reduce the expense ofmanufacture of shutter-workers of this class, and enable me to providean article which may be sold at a very low price.

What I claim as my invention, and desire to secure by Letters Patent,is-

The combination of the two leaves D D and ALVIN H. DODD.

Witnesses:

G. HALL, FREDK. HnYNEs.

